Ing C. Olivetti C., S.p.a.

Dino Lavagna

Franco Knirsch

Giorgio Rossi

A thermosensitive record medium comprising a base sheet coated with a thermosensitive mixture resulting by mixing together a crystal violet lactone and a phenolic compound in a binding and dispersing agent comprising at least 5% of nonionic cellulose ether. The use of this binder improves the stability of the mixture avoiding any unusual color reaction.

Thermosensitive element for thermographic reproduction or registration

A temperature-responsive record material for use in a thermographic recording and reproducing apparatus comprising a supporting sheet carrying a single layer containing, as the temperature-sensitive composition, a mixture resulting by a dispersion of a basic chromogenic compound and of an acidic compound in a binder having as assential binding agent a latex or a mixture of a latex with a non-ionic cellulose ether.

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Ivrea (Turin), Italy

Dino Lavagna